
Human Biology: Concepts and Current Issues - With Access (Custom)
15th Edition
ISBN: 9781323045237
Author: Johnson
Publisher: PEARSON
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Chapter 14, Problem 7AWK
Summary Introduction
To review:
The reason for death due to cholera disease if its only symptom is diarrhea.
Introduction:
Cholera is an infection caused by bacteria called Vibrio cholera that contaminate drinking water or food. This disease is common in places where the sanitation is poor and there is no steady and clean supply of water. The infection mainly affects the small intestine of the humans and the symptoms may range from mild to severe.
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Discussion Questions
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Part A: The Effect of Temperature on Enzyme Activity
Graph the volume of oxygen produced against the temperature of the solution.
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Discussion Questions:
Part One
Why were the plants kept in the dark prior to the experiment? Why is this important?
Why is it important to boil the leaf?
Explain why it was necessary to use boiling alcohol?
What is the purpose of the iodine?
Part Two
What was the purpose of keeping the leaf in the dark and then covering it with a cardboard cut-out?
What conclusions can you draw from this part of the lab?
Part Three
7. In this experiment what was the purpose of adding the soda lime?
8. Why was a sealed bag placed around each plant?
9. What happened in the control plants?
10. What was the result on photosynthesis?
Part Four
11. Why was a variegated leaf used in this experiment?
!2. What conclusions can you draw about starch production in a variegated leaf?
How did the color differences between the two bacterial species you used in this experiment help you determine if the streak plate method you performed was successful?
Chapter 14 Solutions
Human Biology: Concepts and Current Issues - With Access (Custom)
Ch. 14 - Prob. 1QCCh. 14 - What do you think is governments proper role (if...Ch. 14 - Describe the organs of the GI tract including the...Ch. 14 - Prob. 2CRCh. 14 - Prob. 3CRCh. 14 - Prob. 4CRCh. 14 - Indicate how many teeth adult humans have.Ch. 14 - Prob. 6CRCh. 14 - Prob. 7CRCh. 14 - Rank the major nutrient groups (carbohydrates,...
Ch. 14 - Prob. 9CRCh. 14 - Prob. 10CRCh. 14 - Which of the GI tract tissue layers is most...Ch. 14 - All of the following are secreted into the lumen...Ch. 14 - All of the following are found in saliva except:...Ch. 14 - Which of the following might be true of an...Ch. 14 -
5. Which of the following nutrients are digested...Ch. 14 - The region of the digestive tract most responsible...Ch. 14 -
7. Which of the following lists structures in...Ch. 14 -
8. What do the enzymes pepsin, chymotrypsin,...Ch. 14 -
9. Once nutrients are absorbed into the...Ch. 14 - Prob. 10TYCh. 14 - Prob. 11TYCh. 14 - Prob. 12TYCh. 14 - Prob. 13TYCh. 14 - Prob. 14TYCh. 14 - Which of the following is associated with celiac...Ch. 14 - Prob. 1AWKCh. 14 - Prob. 2AWKCh. 14 - Prob. 3AWKCh. 14 - Prob. 4AWKCh. 14 - Prob. 5AWKCh. 14 - Prob. 6AWKCh. 14 - Prob. 7AWK
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